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rgbquadtreehojoon
This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
(This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
)
- 2009-09-17 14:52:16下载
- 积分:1
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SolvingSymmetricalandDisSymmetricalTSPbaseonAntCol
Using Ant Colony Optimization Algorithm to solve Traveling Salesman Problem.对此方面的研究很有帮助(Using Ant Colony Optimization Algorithm to solve Traveling Salesman Problem. This research helpful)
- 2007-09-09 16:14:48下载
- 积分:1
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MATLABsimulink
matlab simulink主要介绍了simulink模块的使用,适合初学者学习!(matlab simulink simulink module introduces the use of, suitable for beginners to learn!)
- 2010-10-05 16:16:15下载
- 积分:1
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Movement-target-detection
运动目标检测的程序是有关车辆的,其中涉及到几种方法,有一定的参考价值。(Sports target detection program about the vehicle,reference to several methods and it is worth reading.)
- 2012-05-04 10:05:03下载
- 积分:1
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bangbang
直线一级倒立摆的时间最优控制起摆设计仿真图(Linear inverted pendulum swing time optimal control design and simulation of Figure)
- 2011-06-09 15:36:35下载
- 积分:1
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Arnold
阿诺德算法,用于图像加密的阿诺的算法。可以直接使用matlab软件实现。(Arnold algorithms for image encryption the Arnold algorithms. Matlab software can be used directly.)
- 2013-03-09 13:39:51下载
- 积分:1
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Analog_communicatio
Analog communication for matlab(Analog communication for Matlab)
- 2006-06-19 10:54:31下载
- 积分:1
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seismic_processing_programme
地震数字处理的基本程序,其中包括滤波褶积,fft,dft,自相关互相关,以及偏移等,对地质学人员比较有用(Digital processing seismic basic procedures, including convolution filter, fft, dft, autocorrelation cross correlation, and offset, etc., more useful for people geology)
- 2013-12-25 15:08:07下载
- 积分:1
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fwddctstego
this source code based on steganography and developed in matlab. in steganography we can hide any data like images in another image.
this method based on discrite cosine transform method.
- 2009-03-23 22:27:13下载
- 积分:1
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OFDMBER_Done
基于OFDM的仿真程序,完整版,已完成仿真,并验证可行(Based on OFDM simulation program, the full version, simulation has been completed, and validation is feasible)
- 2015-04-13 10:30:39下载
- 积分:1